Floor runners do anything required to aid the shoot's progress.
Floor runners do anything required to aid the shoot's progress. They run errands, convey messages, look after cast and crew, make drinks and provide food, drive and deliver kit.
Floor runners are often responsible for transport to and from unit base to set. They help with getting the cast to the unit cars and crew into the minibuses.
And they deal with small and large crowds of supporting artists, supervising them, with the help of the key third or with a crowd third (see first assistant director (AD)). They might have to supervise them or set a few into the background.
Even small details may cause delays, so floor runners are quick on their feet and responsive to specific requests from the producer, director, or assistant directors.